Yes, I get it, but the situation is like this - I imported my browser bookmarks, in which some where tagged 'google bookmarks'. The Diigo toolbar imported this tag like that, with the space separator. And now I can't do anything with this tag. I cannot rename it and cannot delete it. When I try to rename or delete it states that the operation succeeded, but the next refresh the tag reappears. So how do I remove it?...